Elon Musk’s current net worth estimates, ranging from roughly $726 billion per Bloomberg to $826–839 billion per Forbes as of June 4, underpin the 87.5% market-implied probability for an 800 billion-plus outcome on June 30. Tesla shares trading near $430–440 sustain the value of his roughly 12–20% stake, while the SpaceX IPO expected around June 12 will assign a liquid market valuation to his dominant holding at a targeted $1.77 trillion company level. This near-term catalyst, building on Musk’s February 2026 crossing of the $800 billion threshold, reinforces trader consensus reflected in these real-money odds. Volatility in final share pricing and any post-IPO adjustments before month-end remain the primary swing factors.